STATUS
reviewed
approved
reviewed
approved
proposed
reviewed
editing
proposed
E.g.f.: ((2 - x + x^2)*cosh(x) + (3 - x + x^2)*sinh(x) - 2)/2. - Stefano Spezia, Jan 28 2024
approved
editing
reviewed
approved
proposed
reviewed
editing
proposed
Sum_{n>=1} 1/a(n) = tanh(Pi/2)*Pi/2 + coth(Pi/sqrt(2))*Pi/(2*sqrt(2)) + 1/2. - Amiram Eldar, Sep 16 2022
approved
editing
reviewed
approved